visible_hostname myhost.mydomain.com
pipeline_prefetch on
ie_refresh on
httpd_accel_with_proxy off
httpd_accel_uses_host_header on

Here is the kicker. I can block any site I want if it
is on the internet. However, I cannot do it for site
which
our internal to our network. I disable 'bypass' in a
browser
settings but with no success.